Results 41 to 50 of about 2,851,278 (244)
PRECISION RADIAL VELOCITIES WITH CSHELL [PDF]
The Astrophysical Journal, 2011 31 pages, 3 figures, 2 tables, accepted for publication in ...
Crockett, Christopher J. +5 more
openaire +3 more sources
MAROON-X: a radial velocity spectrograph for the Gemini Observatory [PDF]
Astronomical Telescopes + Instrumentation, 2018 MAROON-X is a red-optical, high precision radial velocity spectrograph currently nearing completion and undergoing extensive performance testing at the University of Chicago.
A. Seifahrt +3 more
semanticscholar +1 more source
Radial velocity observations of VB10
EPJ Web of Conferences, 2011 VB 10 is the smallest star known to harbor a planet according to the recent astrometric study of Pravdo & Shaklan [1]. Here we present near-infrared (J-band) radial velocity of VB 10 performed from high resolution (R~20,000) spectroscopy (NIRSPEC/KECK II)
Rodler F. +5 more
doaj +1 more source
Сучасні інформаційні системи, 2019 The purpose of the article. The article estimates the possible values of the components of the mean-square error of measuring the radial velocity of the target which appear as a result of fluctuations of the phase of the radio signal outside the radar ...
Oleksandr Kuznietsov +4 more
doaj +1 more source
Measurements of the Reynolds stress in the turbulent premixed flame
Nihon Kikai Gakkai ronbunshu, 2021 It has been shown in our previous study that the bi-modal distribution is seen in the radial component of the gas velocity obtained in the turbulent flame brush, implying that the shear component of the Reynolds stress conditioned on the unburnt mixture ...
Nobuhiro MAKITA +3 more
doaj +1 more source
Confirmation of the radial velocity super-Earth K2-18c with HARPS and CARMENES [PDF]
Astronomy & Astrophysics, 2018 In an earlier campaign to characterize the mass of the transiting temperate super-Earth K2-18b with HARPS, a second, non-transiting planet was posited to exist in the system at ~9 days.
Ryan Cloutier +15 more
semanticscholar +1 more source
Spectrum radial velocity analyser (SERVAL). High-precision radial velocities and two alternative spectral indicators [PDF]
, 2017 Context: The CARMENES survey is a high-precision radial velocity (RV) programme that aims to detect Earth-like planets orbiting low-mass stars. Aims: We develop least-squares fitting algorithms to derive the RVs and additional spectral diagnostics ...
M. Zechmeister +20 more
semanticscholar +1 more source
Quantifying the Bayesian Evidence for a Planet in Radial Velocity Data [PDF]
Astronomical Journal, 2018 We present results from a data challenge posed to the radial velocity (RV) community: namely, to quantify the Bayesian “evidence” for n = {0, 1, 2, 3} planets in a set of synthetically generated RV data sets containing a range of planet signals ...
B. Nelson +8 more
semanticscholar +1 more source
AESTRA: Deep Learning for Precise Radial Velocity Estimation in the Presence of Stellar Activity
The Astronomical Journal, 2023 Stellar activity interferes with precise radial velocity measurements and limits our ability to detect and characterize planets, in particular Earth-like planets.
Yan Liang +2 more
doaj +1 more source
pyaneti: a fast and powerful software suite for multiplanet radial velocity and transit fitting [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Transiting exoplanet parameter estimation from time-series photometry and Doppler spectroscopy is fundamental to study planets' internal structures and compositions. Here we present the code pyaneti, a powerful and user-friendly software suite to perform
O. Barragán +3 more
semanticscholar +1 more source